c. 1930's american vintage industrial reinforced four-legged riveted joint stationary stool fabricated by the angle steel stool co., otsego, mi. the machine shop workbench stool is comprised of heavy gauge angled steel with a darkened green enameled finish. contains multiple stretchers for added support and stability. a newer gunship gray enameled cold-rolled steel backrest was added at a later point in time. the distinctive ball-turned feet are in great shape, considering age. seat height measures 25 inches.